Before the opening of the annual Pacific Islands Forum (PIF), leaders of the six smallest members teamed up to give Australia and New Zealand a tongue-lashing for their minimal efforts in the war on climate change.

The five-day forum, which began Monday, comes and caused heavy flooding in Tuvalu, Kiribati and the Marshall Islands. Representatives from the Cook Islands, Kiribati, the Marshall Islands, Nauru, Palau and Tuvalu met beforehand to, calling the rest of the world to action. They stated that their islands, , are already suffering from the impacts of climate change. Some villages in Kiribati have .

As the Kiribati government has begun resettling many of its residents who live in the lowest-lying (and most flood-prone) areas to the South Tarawa atoll, it has led to overcrowded conditions there.

(Lorrie Graham/AusAID)

“This is our last chance to reach an outcome that must reverse the global warming pathway to ensure the future survival and existence of our nations, people and culture," they said in their plea. They argue that it is crucial for the (COP21)talks in Paris in December to .

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The main objective of the COP21 is to aimed at stabilizing the atmospheric concentrations of greenhouse gases and the avoidance of hazards to the climate system.According to the COP21 website, this year - for the first time ever - their aim is to achieve the legally binding universal agreement on climate, with the (2 ºC). However, Pacific leaders want the world to work on restricting the global warming temperature rise to 34.7 degrees Fahrenheit (1.5 ºC) for fear that t.

Kiribati’s president Anote Tong has accepted the fact that it is and has already in case some communities in Kiribati will have to relocate completely within the next five years. Tong warns that if climate change is not tackled significantly, the Pacific region could similar to Europe’s.

Leaders speak during the Smaller Islands States Leaders meeting as part of the Pacific Islands Forum in Port Moresby, Papua New Guinea, on September 7, 2015.

(Ness Kerton/AFP/Getty Images)

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According to News.com.au, Tong expressed his doubt over the future of the forum if Australia and New Zealand proceed with ahead of the COP21 and alluded to the fact that Australia may be asked to leave if it shows no support for stronger action. He has even invited Australia’s Prime Minister Tony Abbott to come see the flooding in Kiribati for himself, revealing that UN Secretary General Ban Ki-Moon always during visits to the low-lying island, just in case ocean waves came over.

“Maybe [Tony Abbott’s swimming talents] make him better equipped to come our way,” Tong joked.

SBS Online reports that Abbott’s government has announced a on 2005 levels by 2030. New Zealand’s by 2030. Both have been criticized as lacking ambition.

MORE ON WEATHER.COM: Climate Change's Effect on Kiribati